Rainbow-electronics MAX15058 Manual de usuario descargar pdf (Pagina 10)

High-Efficiency, 3A, Current-Mode

Synchronous, Step-Down Switching Regulator

MAX15058

10 _____________________________________________________________________________________

BIAS

GENERATOR

EN LOGIC, IN UVLO

THERMAL SHDN

SKIP-MODE

LOGIC

CONTROL

LOGIC

SKPM

0.58V

GND

PGOOD

SS/REFIN

RAMP

COMP

SKIP

SHDN

VOLTAGE

REFERENCE

OSCILLATOR

RAMP GEN

SKPM

SINK

SOURCE

LOW-SIDE SOURCE-SINK

CURRENT LIMIT AND ZERO-

CROSSING COMPARATOR

0.6V

HIGH-SIDE

CURRENT LIMIT

STRONG PREBIASED

FORCED START

SS/REFIN BUFFER

ERROR AMPLIFIER

10µA

PWM

COMPARATOR

POWER-GOOD

COMPARATOR

CURRENT-SENSE

AMPLIFIER

0.555V RISING,

0.527V FALLING

MAX15058

Block Diagram

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 20 21

MAX15058 1
Detailed Description 11
SW LOAD IN 12
Input Capacitor Selection 13
Output Capacitor Selection 13
OUT ESR_COUT 14
SW IN SW OUT 14
Compensation Circuitry 17
Setting the Soft-Start Time 18
Power Dissipation 19
Layout Procedure 19

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Rainbow-electronics MAX15058 Manual de usuario Pagina 10

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